设函数[img=163x51]1803d68ca3606a6.png[/img]则[img=34x25]1803d68cab5fa00.png[/img]以[img=20x18]1803d68cb4b7624.png[/img]为周期的傅里叶级数在点[img=45x39]1803d68cbd34c6e.png[/img]处收敛于（ ）．
A: [img=41x46]1803d68cc58e936.png[/img]
B: 0
C: [img=112x27]1803d68ccdbe8c7.png[/img]
D: [img=18x46]1803d68cd66ca51.png[/img]
A: [img=41x46]1803d68cc58e936.png[/img]
B: 0
C: [img=112x27]1803d68ccdbe8c7.png[/img]
D: [img=18x46]1803d68cd66ca51.png[/img]
举一反三
- 设函数[img=163x51]1803667dccc3146.png[/img]则[img=34x25]1803667dd505b30.png[/img]以[img=20x18]1803667ddd328e4.png[/img]为周期的傅里叶级数在点[img=45x39]1803667de5b6c4e.png[/img]处收敛于（ ）． A: [img=41x46]1803667dee3a751.png[/img] B: 0 C: [img=112x27]1803667df69c588.png[/img] D: [img=18x46]1803667dff11059.png[/img]
- 设函数[img=163x51]1802cff829b1a5d.png[/img]则[img=34x25]1802cff831f3473.png[/img]以[img=20x18]1802cff83a4a64f.png[/img]为周期的傅里叶级数在点[img=45x39]1802cff843257e9.png[/img]处收敛于（ ）． A: [img=41x46]1802cff84b451df.png[/img] B: 0 C: [img=112x27]1802cff853ec0c7.png[/img] D: [img=18x46]1802cff85c223d3.png[/img]
- 设函数[img=163x51]1802cff17e063fd.png[/img]则[img=34x25]1802cff186ae501.png[/img]以[img=20x18]1802cff18f0f5b7.png[/img]为周期的傅里叶级数在点[img=45x39]1802cff19830198.png[/img]处收敛于（ ）． A: [img=41x46]1802cff1a0681ae.png[/img] B: 0 C: [img=112x27]1802cff1a9a1e94.png[/img] D: [img=18x46]1802cff1b18c1a5.png[/img]
- 设函数[img=163x51]1803d69c18d9fdf.png[/img]则[img=34x25]1803d69c2110b6a.png[/img]以[img=20x18]1803d69c28a83ed.png[/img]为周期的傅里叶级数在点[img=45x39]1803d69c30cb587.png[/img]处收敛于（ ）． A: [img=41x46]1803d69c38cbffb.png[/img] B: 0 C: [img=112x27]1803d69c417dcdd.png[/img] D: [img=18x46]1803d69c4a0c107.png[/img]
- 设函数[img=163x51]1802cff1644d560.png[/img]则[img=34x25]1802cff16cea8e1.png[/img]以[img=20x18]1802cff176edfd0.png[/img]为周期的傅里叶级数在点[img=44x18]1802cff17f48583.png[/img]处收敛于（ ）． A: 0 B: 1 C: -1 D: [img=18x46]1802cff187c8ca7.png[/img]